Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Se o primeiro jogador escolher RB B, quais são as escolhas do segundo jogador?
 ###Tabelas: CREATE TABLE european_record (european_record_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Played INT, Draw INT, Lost INT, Against INT) CREATE TABLE players_of_the_week (players_of_the_week_id AUTO_INCREMENT PRIMARY KEY, Week VARCHAR, Division VARCHAR, Position VARCHAR, Player VARCHAR, School VARCHAR) CREATE TABLE napier_city (napier_city_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, Gender VARCHAR, Area VARCHAR, Authority VARCHAR, Decile INT) CREATE TABLE variation_with_playing_cards (variation_with_playing_cards_id AUTO_INCREMENT PRIMARY KEY, 1st players choice VARCHAR, 2nd players choice VARCHAR, Probability 1st player wins VARCHAR, Probability 2nd player wins VARCHAR, Probability of a draw VARCHAR) CREATE TABLE disc_four:_studio_highlights_1971-1976 (disc_four:_studio_highlights_1971-1976_id AUTO_INCREMENT PRIMARY KEY, Track INT, Recorded VARCHAR, Original Issue VARCHAR, Song Title VARCHAR, Time VARCHAR)  
SELECT 2nd players choice FROM variation_with_playing_cards WHERE 1st players choice = RB B